Tamper-proof package



Dec. 16, 1969 R. P. WHITE ET AL 3,484,012

TAMPER'PROOF' PACKAGE Filed Jan. 22, 1968 2 Sheets-Sheet 1 INVENTORSROBERT]? WHITE CHARL S N. FUSTER BY WA -W AGENT Dec. 1 6, 1969 w rr ETAL 3,484,012

TAMPER-PROOF PACKAGE Filed Jan. 22, 1968 2 Sheets-Sheet 2 i a I 38 46 II 48 I 43 45 45 I IN VE N TORS ROBERT F. WHITE HARLES N. OSTER BY WAGENT 3,484,012 TAll IPER-PRGUF PACKAGE Robert 1. White, Winnetka, andCharles N. Foster, Oak Park, 111., assignors to Continental Can Company,Inc., New York, N.Y., a corporation of New York Filed Jan. 22, 1968,Ser. No. 699,573 Int. Cl. B6543 55/08, 41/34 US. Cl. 21542 13 ClaimsABSTRACT OF THE DISCLOSURE A tamper-proof container, sealed by means ofa turn-off type cap. The cap includes a separable ring at the lower endof the skirt. The ring is connected to the skirt by circumferentiallyspaced frangible bridges. When the cap is turned for removal, thefrangible bridges break, resulting in a free fall of the ring until itaudibly strikes a large diameter neck or shoulder portion of thecontainer to audibly and visually indicate the breaking of the seal.

BACKGROUND OF THE INVENTION Field of the invention The invention is inthe general field of packaging, and in particular, in the field ofpackaging food products in hermetically sealed containers. Many foodproducts and liquors are commonly packaged in glass containers that arehermetically sealed by means of turn olf type closure caps. In order toassure a purchaser that the package has not been priorly opened,tamper-proof closures have been developed. Such tamper-proof closures ofone type or another are extensively used in the packaging of hardliquor, such as whiskey and gin. The use of such tamper-proof closuresis gaining acceptance in the packaging of such products as catsup,sauces and syrups, and may shortly extend into the packaging of manyother food and even non-food products.

The invention provides new and novel improvements in a specific type oftamper-proof, turn-off container closure construction that is inwidespread use.

The prior art Tamper-proof packages of the specific type under consideration include a container, usually made of glass, such as a bottleor jar, and a turn-01f type metallic closure cap that is in engagementwith inclined surfaces, such as the surfaces of threads on the containerfinish portion adjacent the container mouth opening. The cap includes aseparable ring at the lower end of the skirt which is connected to theskirt by circumferentially spaced frangible bridges. Cooperating meansare provided on the separable ring and container finish which providedetents to prevent the ring from rotating when the cap is turned forremoval. The turning of the cap creates shearing forces acting on thefrangible bridges resulting in the rupture of the bridges and theseparation of the ring from the upper cap portion.

In early prior art designs still in use, the separable ring, after thebreaking of the frangible bridges, remains captive on the containerfinish, substantially in the same position it was in prior to thebreaking of the frangible bridges. It is thus possible for someone tobreak the seal and remove the cap and afterwards turn the cap back onthe container mouth in such a manner so as to realign the fracturedfrangible bridges, to conceal the fact that the container had beenopened, to all but particularly observant prospective purchasers.

In order to make it more apparent that the container was priorly opened,later designs provided for a slight sliding-down of the ring on thecontainer finish subsequent nited States Patent 0 "ice to the breakingof the frangible bridges as shown in the US. patent to R. P. Knapp etal., 3,158,278, issued Nov. 24, 1964, and No. 3,235,155, issued to I. D.Duke on Feb. 15, 1966. With this arrangement, when the cap is replaced,it is more readily apparent to a prospective customer that the containerwas opened, in that the broken ring bridge edges Will be spaced apart sothat they will be more easily observed. Even though this was animprovernent, the prospective customer still has to be rather observantto detect the slight downward sliding of the ring since the ring stayson the container finish in rather close proximity to the replaced uppercap portion and does not rattle against the finish when the container ishandled so as to attract a prospective customers attention.

At the time a customer opens either one of the types of packageimmediately above described, he may have some indication as to whetherthe package had been priorly opened. If the package was priorlyunopened, it will require a relatively high turning force to fracturethe frangible bridges between the separable ring and the upper capportion. The bridges may be heard to snap and the sudden release inpressure may be felt by the fingers. In the event that the package waspriorly opened, there will be no audible signal such as caused 'by thebreaking of the frangible bridges, nor will there be the suddenlessening of the turning force as occurs immediately following thebreaking of the bridges. The lack of these signals may be observed bythe customer to indicate to him that the package was opened beforehand.However, here again, unless the customer is focusing his attention onthe reception of the expected signals, he is apt to miss them.

The combination container and tamper-proof closure construction inaccordance with the present invention provides better signals, bothvisible and audible, at the time of purchase and at the time of openingthan is achieved by the aforementioned prior art designs. A good audiblesignal is provided at the time the package is opened in that theseparable ring is permitted to drop free of the finish and free-falldownwardly until it strikes either an enlarged neck or shoulder portionof the container with sufiicient impact to make a clearly heard noise.The neck of the container immediately beneath the finish is madesubstantially smaller than the inside diameter of the separable ring sothat when a priorly opened container is removed from the retailers shelffor purchase or for inspection, the ring is clearly visible since it hasdropped a considerable distance away from the top portion of the cap. Itwill also move about freely on the reduced diameter container neck whichattracts the eye and Which also results in audible rattling sounds beingmade by the ring.

Non-tamper-proof caps of modern design having a isimlpioth sidewall orskirt are now widely accepted in the In accordance with the tamper-proofconstructions of the prior art, the detents on the separable ring whichprevent the ring from rotating during removal of the cap are in the formof embossments pressed into the side of the skirt of the cap.

On the other hand, in accordance with the invention, no such embosseddetents in the side of the skirt are necessary; the detents on the capbeing hidden from view as the container is normally viewed so that thepopular modern unembossed sidewall may be achieved.

A further feature of the present invention not found in prior artdesigns is that the cooperating detents on the separable ring of the capon the container finish which prevent turning of the ring, also assistin keeping the cap tightly on the finish. This is of particularimportance when the cap is of the prest-on turn-off type, such asdisclosed in US. Patent 3,270,904, issued Sept. 6, 1966, to Charles N.Foster et al. The detents also cooperate when the cap is turned forremoval to create a downward reaction force on the separable ring topropel the ring downwardly at high velocity against the ringintercepting portion of the container which results in a good audiblesignal.

SUMMARY OF THE INVENTION To overcome the problems encountered with theprior art tamper-proof packages, a package in accordance with thepresent invention includes a plurality of circumferentially spaced apartdetents around the container finish. The detents are generally disposedat an angle with respect to the container axis. These detents cooperatewith a plurality of detents on the tamper-proof ring to provideresultant generally vertical reaction forces tending to hold the closurecap tightly seated on the container finish.

When the upper portion of the closure cap is rotated, the resultantforces exerted by the surfaces of the detents on the container finishagainst the surface of the detents on the separable ring are increasedand caused to tilt so as to have a horizontal component that preventsthe separable ring from rotating. This results in the snapping of thefrangible bridges connecting the separable ring to the cap skirt.

In addition, the resultant forces have a vertical component whichimmediately upon the snapping of the frangible bridges, propels theseparable ring downwardly at high velocity.

The neck portion of the container is made so that it is of substantiallysmaller diameter than the inside diameter of the separable ring. Due tothe angled position of the detents on the container finish, and thesmall diameter container neck, the ring immediately terminates contactwith the container and falls freely through the air until it strikes anintercepting container portion considerably below the container finishwith substantial impact, to audibly report the breaking of the containerseal.

Once the container has been opened, the tamper-proof ring is clearlyvisibly separated and will rattle about on the container neck when thecontainer is handled so as to audibly report the breaking of the seal toa prospective purchaser.

The broad object of the invention is to provide a package substantiallyas immediately above described.

More detailed and specific objects will become apparent upon studyingthe drawings and detailed description of the preferred embodiments tofollow.

BRIEF DESCRIPTION OF THE DRAWINGS FIGURE 1 is a sectional elevation viewof a closure cap constructed in accordance with the principles of theinvention as it appears prior to its application to a container finish;

FIGURE 2 is a fragmentary portion of a container having a finish adaptedto accommodate the cap of FIGURE 1;

FIGURE 3 is a fragmentary enlarged cross-sectional view of the finish ofFIGURE 2 with the cap of FIGURE 1 being applied by a capping head, shownfragmentarily, before the curl at the bottom of the skirt of the cap ispressed into engagement with a circumferential head on the finish;

FIGURE 4 is a view similar to FIGURE 3 with the cap in the fully seatedposition with the curl being in engagement with a circumferential beadon the finish;

FIGURE 5 is a fragmentary perspective view of a container and capconstruction as shown in FIGURES 1-4, illustrating the position of theseparable ring rest ing on the shoulder portion of the container afterthe container has been opened;

FIGURE 6 is a view similar to FIGURE 4, showing a slightly modified capconstruction in which the lower end of the cap skirt is not providedwith a curl but is turned under the circumferential head;

FIGURE 7 is an elevational view, partly broken away. of a modified formof cap shell prior to the application to a container finish;

FIGURE 8 is a fragmentary elevational view of a con tainer having afinish adapted to receive the cap shell of FIGURE 7 thereon;

FIGURE 9 is a fragmentary enlarged cross-sectional view of the containerfinish of FIGURE 8 with the cap shell of FIGURE 7 being appliedthereover and just prior to the formation of embossed thread formationsin the side-wall of the cap skirt;

FIGURE 10 is a view similar to FIGURE 9, with the thread formations inthe side-wall of the cap skirt having been completed so that the cap isfirmly engaged with the container finish and with the curl at the lowerend of the cap skirt being in engagement with detents on the containerfinish; and,

FIGURE 11 is a view similar to FIGURE 10, but showing the separable ringof the cap dropping away from the upper cap portion in a free-fall andjust before making audible contact with an enlarged shoulder portion ofthe container.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGURE 1, theclosure cap 10 includes a top panel portion 11 having a shoulder portion12 forming one margin of a gasket groove 13 while the outer margin isdefined by the depending skirt portion 14. The inner circumferentialsurface 15 of the skirt 14, as well as the gasket groove 13 at thejuncture of the skirt and top panel portion, is filled with a layer offlowable plasticlike gasket material 16 for sealing to a containerfinish and formation of means to facilitate rotational removal of theclosure cap. The gasket material may be of the type described in US.Patents 2,874,863, issued to Harold W. Unger et al., on Feb. 24, 1959and 2,841,304. issued to Donald H. Zipper on July 1, 1968, or theequivalent.

The lower end of skirt 14 is in the form of a separable tamper-proofring 118 which is connected to the upper skirt portion through a seriesof frangible bridging portions 19 at spaced intervals. The lower marginof the tamper-proof ring 18 may he curled as at 20.

A fragmentary portion of a container is illustrated at 22 in FIGURE 2,having a necked-in portion 23 defining a neck of the container locateddirectly below the container sealing finish portion 24. The sealingfinish portion 24 is provided with a plurality of inclined multistartthreads or camming surfaces 25 which may be constructed in accordancewith the teachings of the US. patent to C. N. Foster et al., No.3,270,904, issued Sept. 6, 1966. The lower end of the sealing finishportion is in the form of a circumferential head 26 havingcircumferentially spaced apart detents 27 in the form of hollows in therounded undersurface of the bead 26.

In FIGURE 3 is illustrated an enlarged half-sectional view of theclosure cap of FIGURE 1 being applied to the container finish of FIGURE2. Capping head 32 presses the closure cap 10 onto the rim 28 of thecontainer finish causing the gasket compound 16 to flow around themulti-start threads 25 creating inclined hollow thread formations orcamming surfaces 29 in the gasket compound 16. The details of thisfeature are fully described in the above-mentioned Foster et al. patent.

Simultaneously with the completion of the press-on motion which appliesclosure cap 10, punch 33 engages the curl 20 to force it radially inwardinto contact with the circumferential head 26 as shown in FIGURE 4.Punch 33 maybe continuous or can engage the curl at spaced points aroundthe closure cap depending upon the particular application. In eitherevent, the deformation of the curl 20 radially inward to the position asshown in FIG- URE 4 serves to assist in maintaining the closure cap 10on the container finish 24.

When the curl 28 comes into contact with the circumferential bead 26, itdeforms so that portions of the curl 20 fit into the detents 27 with theremaining portions contacting the rounded under-surface of the bead 26be tween the detents 27. The portions of the curl 20 that fit into thedetents are in the form of matching detents 34 in the separabletamper-proof ring 18 as seen in FIG- URE 5.

With further reference to FIGURE 5, it will be observed that theseparable tamper-proof ring 18 has come to rest on an enlarged shoulderportion 35 of the container 22. Upon separating from the cap, theseparable ring 18 falls freely through the air a considerable verti caldistance before it audibly strikes the enlarged shoulder portion 35 sothat it is easily observed by a prospective customer to be separatedfrom the cap. Furthermore, the necked-in portion of the container 23 isconsiderably smaller than the inside diameter of the ring 18 so thatwhen the container 22 is picked up by a prospective customer and movedabout, the separated ring 18 will rattle on the container neck 23 tofurther indicate that the container was priorly opened.

Referring to FIGURE 3, it will be observed that the detents 27 areprovided in the undersurface of the circumferential head 26 and aregenerally disposed at an angle L from the vertical axis of thecontainer. By so disposing the detents 27, it will be observed in FIGURE4 that the resultant reaction force F exerted by the surface of a detent27 of the container against the surface of a detent 34 on the separablering 18 is generally vertical. Since the reaction force F is nearlyvertical, it will have a large vertical component tending to hold theclosure cap securely in place on the container 22 so as to maintain therim 28 securely sealed in the gasket material 16. This is important inthat immediately after the closure cap 10 has been pressed onto thesealing finish portion 24, the gasket material 16 is in a relativelysoft or pliable condition and may not be effective to adequately holdthe cap in place without the holding action of the curl against thecircumferential head 26 and the hollow detents 27 therein.

As shown in FIGURE 4 the relationship of the cooperating detents 27 onthe sealing finish and the detents 34 on the separable ring 118 permitthe depending skirt portion of the cap 14 to be free of the usualprotuberances found in the prior art tamper-proof constructions. Thesmooth skirt 14 lends modern styling to the closure cap 10 whichprovides a competitive edge in sales appeal.

In view of the fact that the closure cap 10 Would be adequatelymaintained in place on the container 22, without the provision of thedetents 27 on the circumferential bead 26, the main purpose of thedetents 27 cooperating with the detents 34 on the separable ring 18 isto prevent the ring 18 from rotating when the closure cap 10 is beingturned for removal. By thus preventing the separable ring 18 fromturning, shearing stresses are set up in the frangible bridging portions19 which connect the separable ring portion of the cap 14) from theupper portion of the cap indicated at 36. The shearing stresses in thebridging portions 19 result in the fracture of the bridging portions andthe separation of the ring 18 from the upper cap portion 36.

Since the closure cap 10 is rotated in a counter-clockwise direction forremoval, the resultant reaction force F of the hollow surface of thedetents 27 against the detents 34 will be of increased magnitude andwill tilt in a clockwise direction so as to be about as illustrated inFIGURE 2 during removal of the upper cap portion. It will be noted thatthe force F has a horizontal component Fx and a vertical component Fywhich are approximately equal in magnitude. The horizontal component Fxis responsible for preventing the rotation of the separable ring 18 onthe sealing finish during the removal of the upper cap portion 36. Onthe other hand, the vertical component Fy causes the separable ring 18to be propelled downwardly with considerable force at the instant thefrangible bridging portions snap, resulting in the ring 18 striking theshoulder portion with sufficient force to provide an audible report thatthe sealed container was not priorly opened.

It will be observed that the position and the design of the detents 27and cooperating detents 34 permit the ring 18 to immediately fall freeof engagement with the container finish upon the rupture or snapping ofthe bridging portions 19. In prior art designs, the tamper-proof ringmerely slides down on the container finish rather than being forcefullypropelled downwardly and away from the finish in accordance with thepresent invention.

In FIGURE 6 is depicted a modified version of the cap 10 which isindicated generally at 10 applied to the container 22. The cap 10 issimilar in all respects to the cap 10 with the exception of theelimination of the curl 20 on the separable ring 18, and prime numeralshave therefore been employed to indicate the portions of the cap 10'that have the same designation as respective similar numerals used inthe description of the cap 10.

Instead of the cap 10" being provided with a curl such as the curl 20 ofthe cap 18, the skirt portion adjacent the marginal edge indicated at 37at the bottom of the depending slL rt portion 14 is merely turnedinwardly under the circumferential bead 26 and pressed into the hollowdetents 27 so as to form the detents 34' on the separable ring 18 whichprevent the separable ring 18 from rotating upon turning of the uppercap portion 36' during removal thereof. The detents 34 are contiguouswith the marginal edge 37.

It will be noted that the cap 10' has most of the important featuresprovided by the cap 10. For instance, the depending skirt portion 14' issmooth and free of normally visible protuberances in keeping with themodern design concepts.

Although in the cap 10 the detents 27 and 34 are completely hidden fromView with only the smoothly rounded curl 20 being visible to thecustomer, the detents 34' are substantially hidden from view as the cap10 on a container 22 would normally be viewed on a retailers shelf.Similarly, the marginal edge 34, although not completely hidden fromview from all angles of observation, is substantially hidden from viewas the cap 10" is normally viewed on the retailers shelf.

In FIGURE 7 is depicted a modified form of closure shell made inaccordance with the invention and indicated at 38. The closure shell 38is adapted to be applied to the sealing finish 40 of a container 41partially depicted in FIGURE 8.

The closure shell 38 has a top panel portion 42 and a depending skirtportion 43 at the marginal edge of the top panel. A separabletamper-proof ring 44 is provided around the circumference of the lowerend of the depending skirt portion and is connected by means of aplurality of frangible bridging portions 45 to the upper cap portion 46.At the lower extremity of the tamperproof ring 44 is provided acircumferential curl indicated at 47. A suitable gasket 48 is providedin contiguous relationship with the interior of the top panel portion 42for seating on the upper rim 51 of the sealing finish 40 of thecontainer 41.

Container 41 is provided with a continuous inclined thread formation 52on the sealing finish 40. The lower end of the finish 40 comprises acircumferential bead 53 having disposed on an undersurface thereof aplurality of detents in the form of raised protuberances or beadsindicated at 54. Protuberances or beads 54 blend into the container neck55. Container neck 55 is of reduced diameter and extends downwardly atreduced diameter until it blends into an increased diameter shoulderportion 56.

It will be observed that the closure shell 38 illustrated in FIGURE 7does not have thread formations in the depending skirt portion 43 beforeit is applied to the container 41. As seen in FIGURE 9, the shell 38 ismerely placed over the sealing finish 40 in the initial stage ofapplication. Once the shell 38 has been placed as in FIG- URE 9, thedepending skirt portion 43 is rolled about the periphery thereof so asto form an embossed thread formation 57 therein over the threadformation 52 on the container finish as seen in FIGURE 10.

At the same time the thread formation 57 is being rolled into the skirt43 in a manner well known in the art, the circumferential curl 47 of theseparable ring 44 is similarly rolled inwardly until portions thereofengage the beads 54. Curl 47 deforms where it comes into contact withthe beads 54 to form detents therein indicated at 58 that fit around thebeads 54 to provide engaging surfaces that cooperate to retain thetamper-proof ring 44 against rotating.

With reference to FIGURE 11, it will be seen that when the upper capportion 46 is turned counter-clockwise to open the container 41, thebead detents 54 cooperating with the formed detents 58 in the separablering 44, hold the separable ring against rotation, permitting shearingforces to be set up in the frangible bridging portions 45 causing thefrangible bridging portions to snap with the result that the separablering is propelled vertically downwardly in a free fall, as previouslyexplained, until it audibly strikes the enlarged shoulder portion 56 tosignal the person opening the container that the container was notpriorly opened.

As will be observed in FIGURE 9, the detents or beads 54 are disposedalong the undersurface of the bead 53 and at an angle L from thevertical axis of the container. With this disposition of beads 54, thereactional forces F, one of which is shown in FIGURE 10, of the beadsagainst the detents 58, will have a vertical component of a largemagnitude since the forces F will be substantially vertically disposed.The force F thus aids in holding the closure 38 tightly seated on thecontainer finish.

As viewed in FIGURE 8, the counter-clockwise turning of the closureduring removal causes the reaction of force F of the individual bead 54against the individual detent 58 to increase in magnitude and to betilted in a clockwise direction so as to have a horizontal component Fxas well as a vertical component Fy. As previously explained, thehorizontal component Fx resists the tendency of the tamper-proof ring 44to turn which results in shearing forces being set up in the frangiblebridging portions 45, causing the bridging portions 45 to snap,releasing the tamper-proof ring 44. The vertical component of thereaction force F, namely, Fy, exerts a downward force on the ring 44which causes the ring 44 to be rapidly propelled downwardly immediatelyupon the snapping of the bridging portions 45.

As in the previously described embodiments, the separable ring 44immediately drops free of the container finish 40 and free-falls aconsiderable distance through the air before striking the enlargedshoulder portion 56. Due to the ring being propelled downwardly atrelatively high velocity as a result of the vertical force F'y, the ringwill strike the shoulder 56 with considerable impact resulting in aneasily heard signal being produced to indicate to the person opening thecontainer that it was not previously opened.

Assuming the container 41 is on the shelf of the retailer and waspreviously opened, the separable ring 44 will be positioned on theshoulder portion 56 of the container a considerable distance below theupper cap portion 46 where it is readily observed as being separated byprospective purchasers. Furthermore, the neck 55 being of reduceddiameter as compared to the inside diameter of the tamper-proof ring 44,will permit rattling and freeswinging of the ring on the neck 55 when aprospective purchaser handles the container 41 so as to additionallyaudibly and visually indicate that the container was priorly opened.

It is to be understood that the bead-type detents 54 may be substitutedfor the hollowed-out type detents 27 and used in cooperation with theclosure caps 10 and 10' of FIGURES 1-6. Similarly the hollowed-outdetents 27 may be used in lieu of the bead type detents 54 in theembodiment of the invention illustrated in FIGURES 7-11.

Upon the consideration of the foregoing, it will become obvious to thoseskilled in the art that various other modifications may be made withoutdeparting from the invention embodied herein.

What is claimed is:

1. A tamper-proof package comprising:

a Container having a circumferential sealing finish;

inclined cammed surfaces on said circumferential sealing finish;

a sealing rim at the upper end of said circumferential sealing finish;

a plurality of detent means circumferentially spaced apart around thelower end of said circumferential sealing finish and extending generallydownward therefrom;

a reduced diameter neck portion connected to said sealing finish andbeing substantially smaller in diameter than any part of saidcircumferential sealing finish;

a wider diameter container portion connected to said reduced diameterneck portion;

a closure cap adapted to be received over said sealing finish;

said closure cap comprising:

an upper portion having a top panel of a size to cover said upper end ofsaid sealing finish; and

a depending skirt integrally connected to the marginal edge of said toppanel;

inclined camming surfaces on said skirt adapted to engage said sealingfinish inclined camming surfaces whereby said surfaces urge said capupwardly when said upper portion of said cap is rotated for removal:

a tamper-proof ring forming the bottom margin of said skirt, and beingsomewhat larger in internal diam-- eter than the outside diameter ofsaid circumferential sealing finish and of said plurality of detentmeans spaced around the circumferential sealing finish;

spaced bridging portions joining said tamper-proof ring to the upper capportion of said skirt;

a plurality of detent means in said separable tamperproof ring havingsurfaces that normally engage surfaces of said detent means on saidsealing finish so that forces having a vertical component may bedeveloped when said cap is fully on said container and said surfaces arein opposition and said cap detent means is pressed against said sealingfinish detent means with great force when said cap is turned wherebysaid separable ring is propelled downwardly in a free fall when saidspaced bridging portions are broken and said separable ring impinges onsaid enlarged container portion to give an audible signal.

2. A tamper-proof package as set forth in claim 1 further characterizedin that said tamper-proof ring includes a curl at the lower end withsaid detents in said tamperproof ring being formed in an interiorlydisposed portion of said curl where they are hidden from view.

3. A tamper-proof package as set forth in claim 1 further characterizedin that said tamper-proof ring includes an inwardly turned in marginaledge at the lower end with said detents in said tamper-proof ring beingcontiguous with said turned in marginal edge so as to be substantiallyhidden from view.

4. A tamper-proof package as set forth in claim 2 further characterizedin that a flowable plastic-like material is provided along the interiorof said skirt and around the juncture between said skirt and top panel;said flowable material flowing about said inclined camming surfaces onsaid container finish when said cap is pressed in place to form saidcamming surfaces on said upper cap portion and to provide a gasket onwhich said sealing rim seats.

5. A tamper-proof package as set forth in claim 3 further characterizedin that a flowable plastic-like material is provided along the interiorof said skirt and around the juncture between said skirt and top panel;said liowable material flowing about said inclined camrning surfaces onsaid container finish when said cap is pressed in place to form saidcamrning surfaces on said upper cap portion and to provide a gasket onwhich said sealing rim seats.

6. A tamper-proof package as set forth in claim 2 further characterizedin that said carnming surfaces on said closure cap are in the form ofembossed deformations in said depending skirt.

7. A tamper-proof package as set forth in claim 2 further characterizedin that said sealing finish includes a circumferential bead around thesaid lower end thereof with said detents being provided along anundersurface of said head.

8. A tamper-proof package as set forth in claim 7 further characterizedin that said detents on said sealing finish are in the form of hollowsin said circumferential bead undersurface,

9. A tamper-proof package as set forth in claim 7 further characterizedin that said detents on said sealing finish are protuberances in theform of beads projecting from said circumferential bead undersurface.

10. A tamper-proof package as set forth in claim 3 further characterizedin that said sealing finish includes a circumferential head around saidlower end thereof with said detents being in the form of hollows in saidcircumferential bead undersurface.

11. A tamper-proof package as set forth in claim 10 furthercharacterized in that a flowa'ole plastic-like material is providedalong the interior of said skirt and around the juncture between saidskirt and top panel; said flowable material flowing about said inclinedcamrning surfaces on said container finish when said cap is pressed inplace to form said camrning surfaces on said upper cap portion and toprovide a gasket on which said sealing rim seats.

12. A tamper-proof package as set forth in claim 6 further characterizedin that said sealing finish includes a circumferential bead around thesaid lower end thereof with said detents being provided along anundersurface of said head.

13. A tamper-proof package as set forth in claim 12 furthercharacterized in that said detents on said sealing finish areprotuberances in the form of beads projecting from said circumferentialbead undersurface.

References Cited UNITED STATES PATENTS 3,199,703 8/ 1965 Alexander 215423,314,564 4/1967 Anderson et a1 215-7 3,374,913 3/1968 Zipper 21539WILLIAM T. DHSON, I 11., Primary Examiner US. Cl. X.R.

